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化稳定性和去除效率的奇托改性磁石纳米颗粒从磨坊规模废弃物

Nur Asyikin Ahmad Nazri¹, Raba'ah Syahidah Azis², Ismayadi Ismail³

¹Centre of Foundation Studies, Universiti Teknologi MARA, Cawangan Selangor, Kampus Dengkil, 43800, Dengkil, Selangor, Malaysia.

International journal of biological macromolecules

|December 23, 2025

概括

研究人员从磨坊废物中开发出磁性奇托桑纳米粒子 (MagChi NC),以有效地去除. 这种可持续的纳米吸收剂在水处理应用中明显优于未经修改的磁性纳米粒子.

科学领域:

材料科学:开发用于环境修复的新型磁纳米复合材料.
环境化学:纳米吸收剂的应用用于从水溶液中去除重金属.

背景情况:

钢铁生产的副产品 - - 磨坊级废物 - - 含有磁石纳米粒子 (MagNPs).
奇托是一种生物相容的聚合物,具有吸附污染物的潜力.
开发高效和可持续的吸附剂对于解决水污染至关重要.

研究的目的:

为了合成和表征磁性奇托桑纳米颗粒 (MagChi NC) 从磨坊级磁铁.
评估MagChiNC在从水中去除离子 (Cd(II)) 的效率.
为了研究Cd(II) 对MagChiNC的吸附机制和动力学.

主要方法:

磁铁纳米颗粒 (MagNPs) 从磨坊废物中提取出来.
通过pH控制的异凝血,没有交叉连接剂,用奇托修改了magnps.
鉴定包括XRD,FTIR,HRTEM,FESEM,XPS,泽塔潜力和BET表面积分析.
进行了吸附实验,以确定Cd (II) 除去效率,动力学和异温模型.

主要成果:

与MagNPs相比,成功合成了稳定的MagChi NC,其表面积和体稳定性得到了增强.
在最佳条件下 (pH 6,15分钟,3g/L),MagChi NC显示了Cd(II) 的显著更高的吸附能力 (30.6 mg/g) 比MagNPs (10.9 mg/g) 高.
吸附遵循伪二次动力学和兰木尔异热模型,表明化学吸附涉及坐标相互作用,静电吸引和离子交换.

结论:

基托桑修饰显著提高了磁纳米颗粒的吸附能力和Cd (II) 除去的效率.
MagChi NC提供了一种可持续且有效的纳米吸收剂,用于处理受重金属污染的水.
这种方法为废水整治和工业废物利用提供了一个创新的解决方案.

关键词:

吸附动力学吸附动力学去除去除去除结合体稳定性结合体稳定性磁铁 - 奇托桑纳米复合材料可持续的水处理可持续的水处理

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